Question

A body of mass 40 gm is moving with a constant velocity of 2cm/sec on a horizontal frictionless table. The force on the table by the body is :-

Answer 1

Answer:

normal force = mg ...so 0.04 ×10 =.4N

Explanation:

same force is applied by body on table

Answer 2

Answer:

F = 0.392 Newton

Explanation:

It is given that,

Mass of the body, m = 40 gm = 0.04 kg

It is moving with a constant velocity of 2 cm/s or 0.02 m/s

The force acting on the box are normal and the gravitational force. According to Newton's second law of motion F = m a.

Where a is the acceleration of the body.

So, N = m g

F = 0.04 × 9.8

F = 0.392 N

Hence, the force acting on the table is 0.392 N.